Automatic Analyzer Reagent Zoning to Prevent Leakage and Mix-Ups
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Solution Overview
Problem
Existing automatic analyzers face challenges in maintaining reliability and preventable accidents such as liquid leakage and reagent confusion during reagent replacement, necessitating improved maintainability and user guidance.
Innovation Solution
The automatic analyzer is designed with a housing that separates first and second analysis units vertically, partitioning them into zones for different liquids, uses distinct access doors for each zone, and arranges vessels on a floorboard to prevent reagent mixing and contamination, with controlled flow passages to minimize cross-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple reagent vessels are arranged in the same horizontal area, then the device complexity is reduced, but the reliability decreases due to risk of liquid leakage and reagent confusion
Solution Approach 1:
The patent transitions from horizontal arrangement to vertical arrangement by placing reagent vessels on the floorboard (underside of the housing) rather than on horizontal surfaces. This dimensional change allows multiple vessels to be stacked vertically below the first area, reducing horizontal space requirements while maintaining clear separation between different reagent zones, thus resolving the contradiction between device complexity and reliability.
2Adaptability or versatility
If flow passages are connected to various mechanisms for multiple analysis items, then the adaptability increases, but the reliability decreases due to difficulty in preventing liquid leakage and user confusion
Solution Approach 1:
The patent segments the housing into distinct zones: a first area for multiple analysis units and a second area (floorboard region) for reagent vessels. This segmentation creates clear functional separation between analysis mechanisms and reagent storage, allowing each zone to be optimized independently. The segmented arrangement prevents cross-contamination and makes it easier to manage flow passages for different analysis items, resolving the contradiction between adaptability and reliability.
3Ease of operation
If reagent vessels are arranged on horizontal surfaces, then the ease of operation is improved, but the reliability worsens due to potential reagent mixing and contamination
Solution Approach 1:
The patent moves reagent vessel arrangement from horizontal surfaces to the vertical floorboard (underside of the housing). This vertical arrangement on the floorboard provides clear spatial separation between different reagent vessels while maintaining accessibility. The gravitational flow and distinct vertical positioning prevent accidental mixing, resolving the contradiction between ease of operation and reagent purity.
Data Source
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AI summary
In an automatic analyzer 1, a detergent vessel 150, a standard solution vessel 151, a buffer solution vessel 130, a cleaning fluid vessel 131 and a displacement solution vessel 132 are divided and placed in zones on a group of analysis items basis on a floorboard 22 forming the underside of a housing 20, or alternatively, are grouped and placed into reagents used for the group of biochemical analysis items and reagents used for the group of immune analysis items different from the group of biochemical analysis items, or alternatively, are placed in horizontal positions to each other. Accordingly, the automatic analyzer with high maintainability and high reliability is provided in which the operational feeling of conventional products is maintained.